OPINION OF THE COURT
This appeal by Clinton Charles Hashagen from a conviction following a jury trial on two counts of distribution of a controlled substance, 21 U.S.C. 841(a)(1), presents an important question of appellate jurisdiction in criminal cases. Hashagen filed his notice of appeal after he was convicted but two days before he was sentenced and three days before judgment against him was formally entered. The panel to which this case was originally assigned found that the appeal was controlled by
United States v. Mathews,
The
Mathews
rule is harsh, and other circuits have rejected it.
See e.g., United States v. Curry,
I. APPELLATE JURISDICTION
A. Procedural History
On December 11,1985, a jury returned a guilty verdict against Hashagen on both counts of his indictment. Hashagen moved for a new trial, which was denied on February 6, 1986. Twelve days later, on February 18, Hashagen filed a notice of appeal “from the Order denying post-trial motions, and the judgment of conviction upheld thereby.” 2
It was not until two days later, on February 20, that the district court sentenced Hashagen to concurrent terms of nine months imprisоnment and special parole terms of three years on each count. On the next day, February 21, the sentence was reduced to judgment when a judgment and commitment order was filed. Hashagen filed no subsequent appeal. Therefore, his only notice of appeal was filed three days before formal entry of the judgment.
B. The Language of Rule 4(b)
To determine whether Hashagen’s appeal was timely filed, we look to Federal Rule of Appellate Procedure 4(b),
see supra
n. 1. This rule begins with the command: “In a criminal case, the notice of appeal by a defendant shall be filed in the district court within ten days after the entry of the judgment or order appealed from.” It has long been established that “[fjinal judgment in a criminal case means sentence. The sentence is the judgment.”
Berman v. United States,
Hashagen, however, filed his appeal three days before his sentence was formally entered and thus technically before “entry of the judgment or order appealed from.” Therefore, the issue presented by Hashagen’s appeal сoncerns the effect of a filing that is three days premature. The second sentence of Rule 4(b) may be construed as addressing this situation. It provides that “[a] notice of appeal filed after the announcement of a decision, sentence or order but before entry of the judgment or order shall be treated as filed after such entry and on the day thereof.”
The
Mathews
panel found that the second sentence of Rule 4(b) did not support jurisdiction over an appeal filed prematurely. In
Mathews,
the defendant filed a notice of appeal from a judgment of conviction and denial of post-trial motions five
*902
days before sentence was entered.
3
The panel refused to base jurisdiction on that appeal, finding it “premature because ‘[a]n appeal may not be taken until the pronouncement of sentence____’”
The Mathews panel’s reading of Rule 4(b) is a plausible one. At least equally as plausible, however, is a reading that interprets this portion of Rule 4(b) to save a premature notice of appeal from a jurisdictional defect. Because the second sentence of Rule 4(b) is written in the disjunctive, this reading resists being constrained by the word “sentence.” It finds that a premature notice of appeal is also one that is “filed after the announcement of a “decision” or “order” (i.e., the guilty verdict or the order denying the motion for a new trial) “but before entry of the judgment” (i.e., the entry of the judgment of sentence). Under this reading the notice of appeal should be “treated as filed after such entry and on the day thereof.”
Rule 4(b) thus presents the courts with a choice between two viable readings. 5 In deciding between the two, we find interpretive guidance from Federal Rule of Criminal Procedure 52(a), which provides: “Any error, defect, irregularity or variance which does not affect substantial rights shall be disregarded.” Reading Rule 4(b) in conjunction with Rule 52(a), a premature criminal appeal should be operative unless the prematurity impairs substantial rights that Rule 4(b) seeks to proteсt — substantial rights that can only be ascertained with reference to the policies served by Rule 4(b). Thus, only if a notice of appeal filed after the verdict but before sentence offends the policies behind Rule 4(b) should it be held inoperative. Otherwise, the prematurity is an “irregularity ... which does not affect substantial rights” and ought to “be disregarded.” Fed.R.Crim.P. 52(a). 6
*903 C. Policies Attendant to Notices of Appeal
Two policy interests have been identified as the animating forces behind Rule 4(b): “the practical necessities of judicial economy and finality of litigation on the one hand and fundamental notions of fair play on the other.” Note, Timely Appeals and Federal Criminal Procedure, 49 Va.L. Rev. 971 (1963) (footnote omitted). Premature criminal appeals may implicate interests in judicial economy because, “until the entry of judgment, orders remain within the control of the district court and can be changed.” J. Moore, B. Ward, J. Lucas, Moore’s Federal Practice 11204.14 (2d ed. 1986). As a general matter, courts of appeals are hesitant to hear prematurely filed appeals lest they overstep their function of review and interfere with ongoing matters in the district courts. In instances of prematurity such as the one presented in this case, however, the concern with interference would not be implicated by reading Rule 4(b) to hold the appeal operative upon entry of judgment. Because sentence must be imposed and judgment finalized for the notice of appeal to ripen, this court’s hearing of the prematurely filed appeal would not interfere with the independent functioning of the district court. The court of appeals would not begin considering the case until the district court ends its involvement by formally entering judgment against the defendant.
Notions of fair play are intimatеly connected with Rule 4(b)’s requirement that one party notify the other of his intention to appeal.
Cf. United States v. Burns,
Moreover, notions of fair play and substаntial justice combine with the strong public interest in assuring the lawfulness of convictions to favor a reading of Rule 4(b) that would not dismiss a prematurely filed but subsequently ripened criminal appeal. As the Court of Appeals for the District of Columbia has recognized on a number of occasions:
in a criminal case in which a sentence of imprisonment is involved, there is a public interest against denial of consideration on appeal of substantial questions as to the lawfulness of the conviction. For if the conviction is erroneous it is abhorrent to justicе that a defendant shall nevertheless suffer such a penalty for the crime charged.
Blunt v. United States,
This interest in fair play, however, must also account for considerations of effective prosecution. It would be unfair and would work against substantial justice if appeals predicated on inadequate notice were held operative, for they would deny the prosecution an opportunity to properly prepare for subsequent proceedings. If a notice of appeal is filed so prematurely that it does not properly aрprise the opposing party of its intention to appeal the final judgment, it is prejudicial and should be considered inoperative. As Professors Wright and Miller phrase this concern, “[TJhere must be some limits to the circumstances in which a premature notice can be *904 given effect; it hardly would do to permit a party to file a general notice of appeal at the start of the action as a precaution to ensure timely filing.” 16 C. Wright & A. Miller, Federal Practice and Procedure H 3950, 1986 Supp. at 258.
The prematurity presented by this case— the filing of a notice of appeal after announcemеnt of the verdict but before entry of the judgment — does not prejudice the government as does a general notice of appeal filed at the outset of the action, however. Indeed, the language of Rule 4(b) does not support the extreme prematurity of a general notice of appeal, for the rule requires the appeal to be filed after either a decision, a sentence, or an order.
Cf. Matranga v. United States,
Under the facts presented by this case, therefore, prejudice from prematurity is not a problem. Hashagen’s notice of appeal, filed after the verdict was announced and within two days of imposition of sentence, provided the government with ample notice of his intention to appeal the final judgment. Indeed, we find it difficult to conceive of any set of circumstances in which the filing of a notice of appeal after verdict and before sentence could prejudice the government. At all events, the government in this case has alleged no prejudice, and we find no indication of prejudice in the record.
In sum, neither of the policies behind Rule 4(b) are offended by a premature notice of appeal filed after verdict but before sentencing. Under Federal Rule of Criminal Procedure 52(a), such a premature appeal therefore presents an “irregularity ... which does not affect substantial rights.”
This policy predicate strongly suggests that we disregard the prematurity and find Hashagen’s notice of appeal operative under Federal Rule of Appellate Procedure 4(b). We also note that the great weight of authority supports reading Rule 4(b) in conjunction with Rule 52(a). We now turn to this jurisprudence.
D. The Jurispmdence of Premature Criminal Appeals
United States v. Lemke,
Rule 37 was amended in 1966 to codify the holding in
Lemke. See
Report of the Judicial Conference,
In
United States v. Moore,
The Eleventh Circuit has also followed Lemke’s Rule 52(a) notice analysis. In
United States v. Curry,
E. The Rule We Adopt
Adherence to the
Mathews
decision would lead' to an anomalous situation in this circuit. In criminal proceedings, where a defendant’s liberty is at stake, a premature appeal would be fatal. In the civil context, however, where only property interests are implicated, a premature appeal becomes operative upon entry of the final order and in the absence of a showing of prejudice to the other party.
Richerson v. Jones,
*906 The Richerson opinion comports with the rule preferred by commentators for both the civil and criminal contexts. Professors Wright and Miller have written that “a premature notice of appeal [is] to be effective upon the filing of the judgment or order appealed from in civil cases, as it now is in criminal cases under Rule 4(b).” 9 16 C. Wright & A. Miller, Federal Practice and Procedure 3950, 1986 Supp. at 258. Nothing in the language of Rule 4, its history, or its underlying policies justifies this circuit’s inconsistent treatment of premature civil and criminal appeals. In our view, a premature notice of appeal in a criminal case should be operative, just as it is in a civil case, if it adequately gives notice and causes no prejudice. Having caused no prejudice, see supra at 11-12, the prematurity of the post-conviction but pre-sentence appeal in a criminal case is an irregularity worthy of disregard under Rule 52(a).
We therefore find that Richerson announces the better rule and we overrule Mathews. We hold that a notice of appeal filed after a verdict but before sentencing will ripen and be regarded as an appeal from the final order once judgment has been fоrmally entered. 10 This conclusion is a faithful reading of Rule 4(b), draws upon Rule 52(a), and is informed by the concepts of fairness and notice that constitute the underpinnings of Lemke, Moore and Curry. Hashagen’s notice of appeal fits squarely within this rule, and we therefore hold that we have jurisdiction to reach the merits of the appeal.
II. THE MERITS
Hashagen grounds his appeal on two alleged errors in the district court. He first claims that the government recorded his conversation with one Larry Lockavich, a government informant, without obtaining a voluntary consent from either party. The сonsent obtained from Lockavich, alleges Hashagen, was coerced and thus involuntary. Hashagen therefore claims that the district court erroneously denied his motion to suppress tainted fruits of an illegal wiretap.
Introduction into evidence at a criminal trial of recordings of a defendant’s private conversations does not violate the Constitution if another party to those conversations voluntarily consented to the recording.
United States v. Caceres,
Hashagen’s second claim is that the district court committed reversible error when it foreclosed a line of questioning that would have adduced testimony from *907 Lockavich, the informant, to the effect that he had tried to give Hashagen one hundred doses of LSD the evening that Hashagen was arrested — some four months after the alleged crime. It is Hashagen’s contention that the jury would have given his entrapment defense more credence had the district cоurt allowed the proffered testimony into evidence.
Our review of this evidentiary matter proceeds under the abuse of discretion standard.
See United States v. Long,
Hashagen was arrested on August 22, 1985 for violations of federal drug laws that had occurred on March 15 and 19 of that year. Because the focus of the entrapment defense is the subjective predisposition of the defendant to commit the crime,
see United States v. Jannotti,
The judgment of the district court will be affirmed.
Notes
. Rule 4(b) reads in pertinent part:
In a criminal case, the notice of aрpeal by a defendant shall be filed in the district court within ten days after the entry of the judgment or order appealed from. A notice of appeal filed after the announcement of a decision, sentence or order but before entry of the judgment or order shall be treated as filed after such entry and on the day thereof.
. Hashagen’s notice of appeal explained that it was filed twelve days after the denial of his motion for a new trial “because the 16th of February (the 10th day from the date of the stated Order) was a Sunday, and the 17th wаs a national holiday and the Courts were closed.”
. Additionally, in apparent realization that this appeal was premature, the defendant in Mathews filed a second notice of appeal eleven days after sentence. The panel found that the second appeal did not invoke the jurisdiction of the court because it failed to meet Rule 4(b)’s ten-day limitations period, albeit by only one day.
. Although the panel relied heavily on this pronouncement in
Corey,
it is in fact dicta.
See United States v. Moore,
. Rule 4(b) contains several substantial ambiguities that lend themselves to various interpretations. In the event that the Advisory Committee on Criminal Rules of the Judicial Conference deems Rule 4 worthy of review, the ambiguities described in this footnote may be of value to it. The third sentence of Rule 4(b) reads, “If a timely motion in arrest of judgment or for a new trial on any ground other than newly discovered evidence has been made, an appeal from a judgment of conviction may be taken within 10 days after the entry of an order denying the motion.” Read in isolation, this sentence would seem to sanction appeals taken before final judgment in any case in which one of the specified motions is denied more than ten days before sentence is imposed. This would commonly happen because, to allow time for preparation of a presentence investigation report, sentencing usually takes place at least 30 days after denial of a new trial motion or the guilty verdict (if no motion is filed). Read in conjunction with the first sentence of Rule 4(b), however, an appeal of such an order would only be operative if taken after entry of the final judgment. Thus, a court presented with the question would have to determine whether the third sentence of Rule 4(b) limits the first or vice versa.
This ambiguity, like that in Rule 4(b)’s second sentence was resolved by the holding of
Mathews.
In
Mathews,
the defendant attempted to invoke the liberal interpretation of Rule 4(b)’s third sentence by arguing that his appeal was from the district court’s order denying the motions for a new trial. The
Mathews
panel rejected this argument on grounds that an order denying such a motion is not a final appealable order.
Id.
(citing
United States v. Rizzo,
. In Mathews, the panel did not discuss Rule 52(a) and identified no policy that would support its choice of a nаrrow reading of Rule 4(b). Rather the per curiam opinion was brief and essentially mechanical in its approach. We do not suggest that policy considerations can override clear and unambiguous language of a rule or statute. But when a rule is fairly susceptible to more than one interpretation, policy concerns may inform the court of the reading that is just and reasonable. We find that Rule 4(b), *903 particularly its second sentence, is far from pellucid and would benefit from the policy analysis that the Mathews panel did not undertake.
. In addition, these courts either distinguish Mathews or explicitly reject its approach.
. Both the Seventh and Eleventh Circuits found collateral support for their decisions in the 1979 amendments to Fed.R.App.P. 4(a)(2), dealing with civil appeals. We note that these circuits were unwilling to ground their decisions solely on this basis. Because this line of reasoning neither presents a straightforward analysis of Rule 4(b) nor refers to the policies underlying notices of appeal, we too are unwilling to find it dispositive. In the interest of completeness, however, we set forth this alternate reasoning. Rule 4(a)(2) was amended with language almost identical to Rule 4(b)’s second sentence: “A notice of aрpeal filed aifter the announcement of a decision or order but before the entry of the judgment or order shall be treated as filed after such entry and on the day thereof.” The Advisory Committee notes indicate that the amendment was to “extend to civil cases the provisions of Rule 4(b), dealing with criminal cases,
designed to avoid the loss of the right to appeal by filing the notice of appeal prematurely."
Fed.R. App.P. 4 advisory committee’s note (emphasis supplied). However, the 1979 amendments also added an exception to this rule in civil cases under Rule 4(a)(4): "A notice of appeal filed before the disposition of any [post-trial] motions shall have no effect. A new notice of appeal must be filed within the prescribed time measured from the entry of the order disposing of the motion____” Fed.R.App.P. 4(a)(4). On the basis of this language in Rule 4(a)(4), the Supreme Court has found that, in civil cases, a notice of appeal "simply self-destructs” when filed before the district court has resolved a post-trial motion that would be dispositive of the case’s outcome.
See Griggs v. Provident Consumer Discount Co.,
The Seventh Circuit found it significant that, although the reasons for the exception as expressed by the Advisory Committee would be equally applicable to criminal appeals, no parallel change was made in Rule 4(b). “It is reasonable to infer that the reason for the Committee’s failure to [similarly amend Rule 4(b) ] was its reluctance to impose technical obstacles to appeals on the merits of criminal cases.”
Moore,
Despite the absence of a specific provision in Rule 4(b) рaralleling Rule 4(a)(4), one circuit has held that a notice of appeal filed while post-trial motions are pending in a criminal case should be dismissed as premature.
See United States
v.
Jones,
. Because of Mathews, neither courts nor litigants in this circuit could be as sanguine as Professors Wright and Miller that Rule 4(b) operates to save premature criminal appeals.
. Since it is not our desire to encourage premature appeals but only to further the ideal of substantial justice, see supra at 9-10, we also hold that such a premature appeal is dismissible if the government, for some reason, formally moves to dismiss it before sentencing. Such a motion must put the defendant on actual notice of the defect and thus permit him to renew the appeal while it will still be effective.
. Neither does the record support the contention that Lockavich was incapacitated by his voluntary use of cocaine at the time he gave his consent.
